Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 9 - Measurement - 9.1 Measuring Length; The Metric System - Exercise Set 9.1 - Page 585: 97


9 hm

Work Step by Step

We need to move the decimal point two places to the left. Therefore, we need to use a unit that is equal to 100 m and this unit is $hm$ (hectometer). We know that 1 hm = 100 m. We can convert 900 m to units of hm. $900~m = \frac{900~m}{1}\times \frac{1~hm}{100~m} = 9~hm$
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